We present X-ray and radio studies of sources which are bright above 1 GeV F(>1 GeV) > 4 X 10-8 ph cm-2s-1). The five known Blazars in this sample are all moderately bright compact X-ray sources and bright compact radio sources. There are 6 known pulsars in this group. Three have radio pulsar wind nebulae (PWN), two of which also have bright extended X-ray synchrotron nebulae. We will present results from an X-ray survey with ASCA of nearly all of the bright GeV sources which reveals an excess of F(2-10keV) > 10-12 ergs cm-2 s-1 sources within the EGRET error contours. In addition, we will present initial results from follow on radio imaging studies of several of these fields. We discover new X-ray/radio nebulae, including one around the newly discovered high Ë pulsar PSR J1420-6048 in the Kookaburra complex, in three GeV error contours which are strong candidates for PWN. However, these sources, along with similar nebulae in CTA 1 and the PWN around PSR B1853+01 in W44, are all associated with EGRET sources which are variable above 100 MeV. This suggests a class of variable $\gamma-$ray sources associated with synchrotron emitting regions powered by the winds of young pulsars.